Drawing frame



June 16, 1942. F. K. HENDRICKSON DRAWING FRAME Filed June 18, 1941 2 Sheets-Sheet 1 .Z'zc/ercQ/T elaz'l'km. law/n m June 16, 1942. F. K. HENDRICKSON DRAWING FRAME 2 Sheets-Sheet 2 Filed June 18, 1941 Patented June 16, 1942 DRAWING FRAME Fred K. Hendrickson, Worcester, Mass., assignor to Whitin Machine Works, Whitinsville, Mass, a corporation of Massachusetts Application June 18, 1941, Serial No. 398,636

2 Claims.

This invention relates to frames for drawin slivers of cotton or of other textile fibers. In such drawing frames, floor space must be provided in which to support a series of receiving cans under the front part of the machine and for devices to automatically move said cans about in such manner that the delivered slivers will be coiled in the cans without accumulating twist.

It is further desirable that the floor space under the drawing frame be kept as free and open as possible. At the same time, it is necessary that the drawing frame table and its superposed parts be held firmly in accurate alignment, so as to avoid sagging of the table and binding of the drawing rolls.

It is the general object of my invention to provide an improved construction in a drawing frame by which such alignment may be accurately attained. It is a further object to pro- 7 vide means by which the table alignment may be conveniently adjusted or restored whenever any change in operating conditions impairs such alignment.

My invention further relates to arrangements and combinations of parts which will be hereinafter described and more particularly pointed out in the appended claims.

A preferred form of the invention is shown in the drawings, in which Fig. 1 is a front elevation of parts of a drawing frame embodying my improvements;

Fig. 2 is an enlarged front elevation of certain parts shown in Fig. 1;

Fig. 3 is a fragmental plan view, looking in the direction of the arrow 3 in Fig. 2;

Fig. 4 is a plan view of a brace member to be described;

Fig. 5 is an end view, looking in the direction of the arrow 5 in Fig. 4;

Fig. 6 is a side elevation of a bracket, looking in the direction of the arrow 6 in Fig. 2;

Fig. '7 is a plan view of a double brace member, to be described; and

Fig. 8 is a side elevation, locking in the direction of the arrow 8 in Fig. 7.

Referring to Fig. 1, I have shown portions of a commercial drawing frame including frame ends l and II, a table 12, a base I4 to support a plurality of receiving cans C and operating mechanism therefor and a plurality of coiler heads l coacting with the cans C. I have also shown parts of the usual drawing rolls l6, roll stands l6, calender rolls ll, top roll covers [8, weighting devices l9, weight-release bars and eccentric rolls 2| by which the weight or tension on the drawing rolls may be manually relieved when the frame is at rest.

I have also shown a driving gear head 22, and tight and loose pulleys 23 and 24, both mounted on a driving shaft 25. All of these parts as shown are of the usual commercial construction.

In carrying out my invention, I provide brackets 30 and 3| adjacent the opposite ends of the table [2, and a brace member 32 at or near the center of length of said table. I also provide long and short tension rods 33 and 34 each having a bolt and eye connection at 35 to one of the brackets 30 or 3!, and each having a right or a left-hand screw thread at its free end to receive a turn buckle 36 and a lock nut 31.

The brackets 30 and 3| are preferably forked as shown at 38 in Fig. 6 to receive the eyes of the tension rods 33 and 34, and the brackets are also provided with upstanding flanges 39 which are adapted to be bolted or otherwise secured to the depending front edge of the table l2.

The brace member 32 is provided with lateral flanges 40 adapted to be bolted to the under side of the table [2, as indicated in Fig. 2, and is also provided with a depending portion 4| grooved at 42 for engagement by the long tension rod 33. The brace member 32 is of such depth that the right and left portions of the long tension rod 33 are angularly disposed, so that the tension rods form a truss and exert a strong upward force against the middle portion of the table I2.

When the parts are assembled as shown in Figs. 1 and 2, the turn buckle 36 is actuated to draw the rods 33 and 34 toward each other until a desired upward force is exerted on the table [2 and so that the table and its superposed parts are brought to accurate alignment, with sag of the table prevented. The lock nut 3! is then set up to hold the adjustment. The tension may be thereafter increased or decreased to restore the alignment, if the alignment is impaired by any change in operating conditions.

Under some circumstances, it may be desirable to use two sets of tension rods and turn buckles, one under the front edge and the other under the back edge of the drawing frame table. In this case, the double brac member 50 shown in Figs. '7 and 8 may be substituted for the single brace member shown in Figs. 4 and 5. Two sets of tension rods, turn buckles and brackets may be associated therewith, the construction being merely a duplicate of the single construction shown in Figs. 1 to 5.

With either the single or the double construction, the drawing frame table is substantially stiffened and may be accurately aligned, while at the same time the floor space between the end frames l0 and II is left free and unobstructed for the cans C and the driving mechanism in the base l4.

Having thus described my invention and the advantages thereof, I do not wish to be limited to the details herein disclosed, otherwise than as set forth in the claims, but what I claim is:

1. In a drawing frame, a table, means to support the opposite ends of said table, a brace member extending downward from said table at an intermediate point in its length, and tension means connected to the two ends of said table and effective to exert an upward force on said brace member to horizontally align said table.

2. In a drawing frame, a table, means to support the opposite ends of said table, brackets secured to said table adjacent the ends thereof, tension rods connected to said brackets, a brace member projecting downward from said table at an intermediate point in its length and engaged by one of said tension rods, and threaded means operative to draw said tension rods together and to thereby exert an upward force on said brace member to horizontally align said table.

FRED K. HENDRICKSON. 

